.#{$lts-prefix}back-to-top {
  position: fixed;
  right: 30px;
  bottom: 30px;
  z-index: 9;
  display: none;
  width: 40px;
  height: 40px;
  padding: 7px;
  color: #fff;
  text-align: center;
  cursor: pointer;
  background: #307ef3;
  border: 0;
  @include border-radius(100%);
  box-shadow: 0 0 10px #307ef3;
  opacity: 0.5;
  @include transition(opacity $lts-transition-speed ease);
  &:hover {
    opacity: 1;
  }
}
